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Hello everyone. A 2 y/o closed central heating system is working but is a continuing source of puzzlement for me. One of the topmost radiators keeps accumulating gas of some kind. The system has been pressurized at 2.4bar and all radiators checked for air. 2 months on and the water pressure...

Hi, Loft conversion allows 50 cubic meters expansion before planning permission is needed and it is said to be the new roof space. However, if this conversion requires thick wall insulation application then surely that in itself will eat up a lot of space? Can that be compensate by further...